Hydrogen peroxide bleaching of Arundo donax L. kraft-anthraquinone pulp -: Effect of a chelating stage

被引：30
作者：
Abrantes, Sandra
Amaral, Emilia
Costa, Ana Paula
Shatalov, Anatoly A.
Duarte, Ana Paula [1 ]
机构：
[1] Univ Beira Interior, Dept Paper Sci & Technol, Res Unit Text & Paper Mat, P-6201001 Covilha, Portugal
[2] Univ Tecn Lisboa, Super Inst Agron, Ctr Forestry Studies, P-1349017 Lisbon, Portugal
来源：
INDUSTRIAL CROPS AND PRODUCTS | 2007年 / 25卷 / 03期
关键词：
Arundo donax L; giant reed; non-wood fibre; kraft-anthraquinone pulp; hydrogen peroxide bleaching; chelating agent;
D O I：
10.1016/j.indcrop.2006.12.006
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Total chlorine free (TCF) and elemental chlorine free (ECF) bleaching sequences were applied to an Arundo donax L. (giant reed) unbleached kraft-anthraquinone pulp, using different sequences with hydrogen peroxide and chlorine dioxide stages. The evolution of ISO brightness, kappa number and pulp viscosity was observed for each stage in all bleaching sequences, as well as the process selectivity. The best results were obtained with the XOQDP sequence with a final ISO brightness of 80%. The effect of a chelating stage before the hydrogen peroxide stage was studied, and the results showed higher pulp viscosity, less peroxide consumption and higher pulp brightness, when this treatment is applied. (C) 2007 Elsevier B.V. All rights reserved.
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收藏
页码：288 / 293
页数：6
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